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| author | 李赞 <lizan@ruc.edu.cn> | 2017-05-10 14:55:34 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 12:20:16 +0200 |
| commit | a4fb44723dcaa56416173bc3d0ff41e9cda25067 (patch) | |
| tree | cb070c7e1f7f493ef6f2d386121e576db5980cf6 /libavformat | |
| parent | 25a592e5d45672bdfdac35bf0119907cdcddd1b7 (diff) | |
| download | ffmpeg-a4fb44723dcaa56416173bc3d0ff41e9cda25067.tar.gz | |
avformat/wavdec: Check chunk_size
Fixes integer overflow and out of array access
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3d232196372f309a75ed074c4cef30578eec1782)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/wavdec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index 7176cd6f2d..8bbb301afc 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -829,6 +829,8 @@ static int w64_read_header(AVFormatContext *s) chunk_key[4] = 0; avio_read(pb, chunk_key, 4); chunk_size = avio_rl32(pb); + if (chunk_size == UINT32_MAX) + return AVERROR_INVALIDDATA; value = av_mallocz(chunk_size + 1); if (!value) |